Using the Conditional and Null-coalescing operator

Program.cs

namespace implement_program_flow
{
    class Program
    {
        static void Main(string[] args)
        {
            // Null-coalescing operator
            var words = new[] { "Luis", "Felipe", "Jorge", "Joel", "Helora" };

            var richardName = words.SingleOrDefault(w => w == "Richard") ?? "Default"; // FirstOrDefault returns null if there is no "Richard"

            Console.WriteLine(richardName);

            // The conditional operator
            var hoursSinceLastMeal = 5;
            var luisMood = hoursSinceLastMeal > 3 ? "Luis is not really happy..." : "Luis is still cool!";
            Console.WriteLine(luisMood);
        }
    }
}